[INFO] cloning repository https://github.com/vijaysharmay/rust-session-part-1
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vijaysharmay/rust-session-part-1" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvijaysharmay%2Frust-session-part-1", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvijaysharmay%2Frust-session-part-1'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2ff9842f9981d1649f30842d3cae2e378aa9f24d
[INFO] testing vijaysharmay/rust-session-part-1 against try#eafdee2dfae8c2233b74f98b123308be7ccefcc6 for pr-79296
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvijaysharmay%2Frust-session-part-1" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vijaysharmay/rust-session-part-1 on toolchain eafdee2dfae8c2233b74f98b123308be7ccefcc6
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/vijaysharmay/rust-session-part-1
[INFO] finished tweaking git repo https://github.com/vijaysharmay/rust-session-part-1
[INFO] tweaked toml for git repo https://github.com/vijaysharmay/rust-session-part-1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/vijaysharmay/rust-session-part-1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7a6c1e530c4a407d9b4a83312ef49bf46bfc92d3cbeefa34829abb1a2a1e13c7
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "7a6c1e530c4a407d9b4a83312ef49bf46bfc92d3cbeefa34829abb1a2a1e13c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7a6c1e530c4a407d9b4a83312ef49bf46bfc92d3cbeefa34829abb1a2a1e13c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a6c1e530c4a407d9b4a83312ef49bf46bfc92d3cbeefa34829abb1a2a1e13c7", kill_on_drop: false }`
[INFO] [stdout] 7a6c1e530c4a407d9b4a83312ef49bf46bfc92d3cbeefa34829abb1a2a1e13c7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ebbdcde5201fdd066ef7e6ead69baf82c3726582b1328172fc1a3c5f8c18370b
[INFO] running `Command { std: "docker" "start" "-a" "ebbdcde5201fdd066ef7e6ead69baf82c3726582b1328172fc1a3c5f8c18370b", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-techtonic-session v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `a1` is never read
[INFO] [stdout]   --> src/lesson_1.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let mut a1: i32 = 1;
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.96s
[INFO] running `Command { std: "docker" "inspect" "ebbdcde5201fdd066ef7e6ead69baf82c3726582b1328172fc1a3c5f8c18370b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ebbdcde5201fdd066ef7e6ead69baf82c3726582b1328172fc1a3c5f8c18370b", kill_on_drop: false }`
[INFO] [stdout] ebbdcde5201fdd066ef7e6ead69baf82c3726582b1328172fc1a3c5f8c18370b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5b7b8b7cb41ced59e6422884c76e0522db46cae917fbb69991b91ed0a23adede
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "5b7b8b7cb41ced59e6422884c76e0522db46cae917fbb69991b91ed0a23adede", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-techtonic-session v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `a1` is never read
[INFO] [stdout]   --> src/lesson_1.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let mut a1: i32 = 1;
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.10s
[INFO] running `Command { std: "docker" "inspect" "5b7b8b7cb41ced59e6422884c76e0522db46cae917fbb69991b91ed0a23adede", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b7b8b7cb41ced59e6422884c76e0522db46cae917fbb69991b91ed0a23adede", kill_on_drop: false }`
[INFO] [stdout] 5b7b8b7cb41ced59e6422884c76e0522db46cae917fbb69991b91ed0a23adede
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5b917539878a196636c1002c20a91dd12bfc6f8f7553590893eeb082c258e5a8
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "5b917539878a196636c1002c20a91dd12bfc6f8f7553590893eeb082c258e5a8", kill_on_drop: false }`
[INFO] [stderr] warning: value assigned to `a1` is never read
[INFO] [stderr]   --> src/lesson_1.rs:16:9
[INFO] [stderr]    |
[INFO] [stderr] 16 |     let mut a1: i32 = 1;
[INFO] [stderr]    |         ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rust_techtonic_session-4471676ba001be67
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "5b917539878a196636c1002c20a91dd12bfc6f8f7553590893eeb082c258e5a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b917539878a196636c1002c20a91dd12bfc6f8f7553590893eeb082c258e5a8", kill_on_drop: false }`
[INFO] [stdout] 5b917539878a196636c1002c20a91dd12bfc6f8f7553590893eeb082c258e5a8